Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
  • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
  • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
  • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F1/00—Tubular elements; Assemblies of tubular elements
  • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
  • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F1/00—Tubular elements; Assemblies of tubular elements
  • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
  • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
  • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
  • F28F1/20—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being attachable to the element
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F1/00—Tubular elements; Assemblies of tubular elements
  • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
  • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
  • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
  • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
  • F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
  • F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
  • F28F19/06—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of metal
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
  • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal

Definitions

• This disclosure relates to a heat exchanger and a refrigeration cycle device.
• Patent Document 1 Japanese Patent Application Laid-Open No. 2023-100145 (Patent Document 1) describes a heat exchanger.
• the heat exchanger described in Patent Document 1 has flat tubes as heat transfer tubes.
• the flat tubes have a sacrificial anode layer on their surfaces.
• the sacrificial anode layer is made of zinc.
• a film of oxide of the metal material that forms the sacrificial anode layer is formed on the sacrificial anode layer.
• Patent Document 1 leaves room for improvement in the ability to drain water that has adhered to the surface of the heat transfer tubes (flat tubes).
• This disclosure provides a heat exchanger with improved ability to drain water that has adhered to the surface of the heat transfer tubes.
• the heat exchanger disclosed herein makes it possible to improve the drainage of water adhering to the surface of the heat transfer tube.
• FIG. 2 is a plan view of the heat exchanger 100. 2 is a cross-sectional view taken along line II-II in FIG. 1.
• FIG. 2 is a first side view of the heat exchanger 100.
• FIG. 4 is a second side view of the heat exchanger 100 as seen from the opposite side to FIG. 3 .
• FIG. 2 is a cross-sectional view of a heat transfer tube 10. 1 is an enlarged cross-sectional view of the heat transfer tube 10 in the vicinity of the surface 10c.
• FIG. 2 is an enlarged cross-sectional view of the fin 20 in the vicinity of the surface 20a.
• FIG. 1 is a model diagram illustrating the hydrophilicity of the surface of an aluminum alloy.
• FIG. 2 is a schematic diagram of a refrigeration cycle device 200.
• Embodiment 1 A heat exchanger according to the first embodiment will be described.
• the heat exchanger according to the first embodiment is designated as a heat exchanger 100.
• the multiple bent portions 24a are aligned at intervals along the second direction DR2.
• the base portion 25a is disposed between two adjacent bent portions 24a and is connected to both of the adjacent bent portions 24a.
• the bottom of the bent portion 24a and the base portion 25a are flat.
• the first surface 21a of each of the multiple base portions 25a is in contact with the heat transfer tube 10B (more specifically, the first surface 10a of the heat transfer tube 10B) via a brazing material.
• the compressor 210 compresses the refrigerant.
• the compressor 210 may be a rotary compressor, scroll compressor, screw compressor, or reciprocating compressor, for example.
• the condenser 220 exchanges heat between the refrigerant and air.
• the condenser 220 may be, for example, an outdoor heat exchanger.
• the throttling device 230 expands the refrigerant to reduce its pressure.
• the throttling device 230 may be, for example, an electric expansion valve, a mechanical expansion valve, or a capillary tube, for example.
• the evaporator 240 exchanges heat between the refrigerant and air.
• the evaporator 240 may be, for example, an outdoor heat exchanger.
• the refrigeration cycle apparatus 200 further includes a blower 251 and a blower 252.
• the blower 251 and the blower 252 blow air to the condenser 220 and the evaporator 240, respectively.
• the evaporator 240 may be, for
• 10, 10A, 10B heat transfer tube 10a first surface, 10b second surface, 10c surface, 11 flow path, 12 surface layer, 13 core, 20 fin, 20a surface, 21 main body, 21a first surface, 21b second surface, 22, 23 protrusions, 24a, 24b bent portions, 25a, 25b base, 26 surface layer, 27 core, 100 heat exchanger, 200 refrigeration cycle device, 210 compressor, 220 condenser, 230 expansion device, 240 evaporator, 251, 252 blower, DR1 first direction, DR2 second direction, DR3 third direction.

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• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Geometry (AREA)
• Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Priority Applications (3)

Applications Claiming Priority (1)

Publications (1)

Family

ID=93933841

Family Applications (1)

Country Status (2)

Citations (4)

• 2024
  • 2024-04-01 JP JP2024549517A patent/JP7606057B1/ja active Active
  • 2024-04-01 WO PCT/JP2024/013436 patent/WO2025210697A1/ja active Pending
  • 2024-12-11 JP JP2024216287A patent/JP7802901B2/ja active Active

Patent Citations (4)

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